www.DataSheet4U.com ST3485E 3.3V Powered, 15KV ES.
ST3485EB - RS-485/RS-422 transceiver
ST3485EIY - RS-485/RS-422 transceiver
ST3485E - TRASMIT AT UP TO 12MBPS TRUE RS-485/RS-422 TRANSCEIVER
ST3485EI - RS-485/RS-422 transceiver
ST3485EC - RS-485/RS-422 transceiver